Stop for trackways



March 22, 1932. A- CAMERQTA 1,850,446

STOP FOR TRAGKWAYS Filed July 25, 1951 W1 TNESSES I N VEN TOR:

Lauzzsmmemm Patented Mar. 22, 1932 UNITED STATES PATENT oFFIcE K LOUISGAMEROTA, F BURLINGTON, NEW JERSEY, ASSIGNOR TO WALTER 7001),v 0F

skids or rails.

PHILADELPHIA,

PENNSYLVANIA STOP FOR TRACKWAYS Application filed .T uly 23,

This invention relates to trackway stops and more particularly to meansfor temporarily arresting movement of cylindrical objects, such as pipesor pipe flasks, rolling on In moving such objects from station tostation in a pipe foundry, particularly where f the trackway is inclineddownwardly'to permit the objects to roll therealong by gravity, itisdesirable to employ a stop at which a series of flasks or pipes willmomentarily be halted in their travel and beyond which the flasks orpipes may be released individually for further movement.

The object of the invention is to provide in combination with a trackwayfor cylindrical objects a stop of this character together withmechanical actuating means for swinging the stop to alternate positions.

- More specific objects and advantages characterizing the invention'willbecome more fully apparent from the description hereinafter of oneexample or embodiment of the invention as applied to the movement ofcylindrical flasks in apipe foundry, the description having reference tothe accompanying drawings', whereof:

Fig. I represents a side elevation of a trackway and transfer oarembodying the invention; and,

Fig. II represents an end elevation. of the trackway.

In the drawingsthere is shown a vtrackway for cylindrical pipe flasks 1comprising generally, skids 2 in the form of rails supported in parallelspacedl relation by means of suitable pedestals 3, the rails beingelevated to a considerable distance abovethe floor 4. It may be assumedthat the trackway is employed for moving pipeflasks 1 in succession froma centrifugal casting station toa mold disintegrating station, and thatthe transfer car, comprehensively designated at 5, is

' adapted to receive flasks discharged at-the 1931. serial No. 552,631.

ing station towards the transfer car 5 in the direction indicated by thearrow.

To guide the movement of the pipe flasks lfupon the trackway, the rails2 at one side thereof aredisposed in close proximity to each other so asto accommodate between them the annular flanges 6 of the pipe iasks.Thus as the pipe asks 1 are rolled along the trackway their axes aremaintained substantially transverse to the parallel rails 2. Near theend of the trackway, stops 7 are providedat each side thereof, the stopsbeing mounted for pivotal movement on a shaft 8 which is supported bybrackets 9 beneath the inner set of rails 2, and which extends from oneside of the trackway to the other. Each stop 7 includes an arm orprojection 10 which normally extends above the top surfaces of the rails2, and an additional arm 11 which is normally below the rails in asubstantially horizontal position. The arm 11 includes a Hat top edge 12which, when the stop 7 is swung about theshaft 8,*strikes the body ofthe rst of the series of pipe flasks and causes the same to bedischarged from the end of the trackway onto the transfer car 5. The arm11 also includes a curved side edge 13 which, while the rst flask isbeing discharged from the trackway, moves upward to engagement with thenext succeeding flask and arrests its movement.

The actuating mechanism for swinging the stops 7 about the axis of theshaft 8 comprises, in the example shown, a cylinder 14, a plunger 15,and a linkage including a toggle joint pivotally connected to the stops7 by a pin 16. Any suitable pressure medium may be employed at thecylinder 14 to cause reciprocatory movement of the plunger 15. On theplunger 15 there is provided a cross head 17 engaging a cross head guidecomprising parallel rods 18.. rlhe cylinder 14 and cross head guide rods18 are mounted, by means of brackets designated respectively at 19 and20, on a plate 21 which is secured to channel beams 22 extending fromone pedestal 3 to another. Joined to the cross head 17 there is aconnecting rodl23, the outer end of which is pivotally connected by apin 24 to toggle links 25 and 26. As shown in Fig. II,

col

usV

n the lower toggle link is fixed to a rock shaft 27 which extends from apedestal 3 at one side of the trackway to a similar pedestal at theother side, and which is rotatably mounty ed in brackets 28. At the sideof the trackway opposite to that on which the cylinder 14 is mounted, asimilar toggle joint comprisin links 29 and 30 and a pivot pin 31, isprovided. The top link 260i the toggle joint, atthe one side-ot thetrackway, and-the top link of the toggle joint at the other sidel of thetrackway, are pivotallyconnected to,

the stops 7 by the pins 16.

,y In an obvious manner reciprocatorygmovement of the plunger 15 causesswinging movement to'be transmitted to the tog le links25- andv 26 atthe .oneside ofthe trac way, and,

through the rockshaft 27, a corresponding movement is transmitted to thelinks 29 and 30 at'the otherfzs'ide of the trackway. Accordingly," witheach stroke of the yplungergl,

` the stops 17 are simultaneously swung'about the axis ofthe shaft 8 toeffect alternate depression. and elevation of their arms 10 and 11. e gY `'lfhextransfer'car k5 comprises generallyffa rectangularframe, madeup of channel beams 32 which support a pair ofparallel rails 33,

and wheelsl 34. The wheels 34 engage the transfer car rails 35 which aretransverse to the rails 2 of theflask trackway and whichy are elevatedfrom the foundry floor 4 by means `of a support 36. With the transfercar in the position shown in Fig. I, its rails 33 are in'registry` withthe stationary rails '210i the trackway.k f

The /operation'of the apparatusis as follows: Assuming thaty a series offlasksy 1 has been rolled by hand or by gravity to the end of. thetrackway and that they are assembled there in contiguous relation withthe first ask engaging the stops 7, and assuming that the transfer car 5occupies the position shown, theoperator` desiring'to4 discharge a askonto the ytransfer car turns av valve or operates other meanscontrolling the pressure cylinder 14 toy effect adouble stroke, oftheplunger 15. With the first stroke of the plun r l5, the

` arms 10 o fvthestops 7 are cause to be. de-

pressed beneath the rails 2; and the arms 11 are caused to kbe elevatedto engage the first flask and kmove the same, by reason of theengagement of the` top edges 12 with the flask j oi the ends of therails 2 onto the rails 33 of the'transfer car 5. At the same f time .thecurved side edges 13 of the stops 7 areprojected above the rails 2intoengagementwith the next succeeding flask to arrest which hasmeanwhile been elevated above the rails 2. Accordingly, with each doublestroke of the plunger 15 a flask is automatically discharged from thestationary trackway onto the transfer car 5. By obvious manipulation ofthe control means for the Cylinder 14,

' any ,desired `nijlmber oflsks may be dischledonto the transfer car.

ilel have described a particular mech-V anism, including toggle joints,forimparting swinging movement to the ystops 7, it will bea yparent thatthe particular mechanism emp oyed for this purpose admits of a widerange of variation. It will be apparent, also, that numerous changes maybe made in the form. of the` aparatus herein described ,withoutdeparting from the spirit ofthe inven-y tion `as defined intheclaims-hereto annexed. 1Having* thus 'described my invention, I c aim:

1. In combination witha trackway kforay-` l-indrical ,-objects,1 a stoppivoted.- alongside saidtrackwayghaving an armnormally projecting abovethe trackwayto arrest move` ment rof `the first of a seriesocylindricalobjects thereon,` and havin an .additional arm normallybelowthe trac way adapted when the stopis'swung about itspivot withdepression of the first mentioned arm tofbe :elevatedto arrestYmovement` of the` next succeeding cylindrical object. i,

2. In combination with a trackway for. cylindrical objects, a ystoppivoted alongside said ytrackway having Aan arm normally pro jecting.vabove the ,trackway .to .arrest movement of the .first of, a series ofcylindrical. objects, thereon, and having an Vadditional arm normallylbelow the trackway adapted when theastop is. swung about itspivot with'depressionk of the first mentioned arm to advance the trst object alongthe trackWay/'while arresting movement ofl thenext succeeding object. Y

3. In combination witha'trackway-iorcylindrical objects, a stop pivotedalong isud trackway ,having ,an arm normally projecting above thetrackway to arrest movement of, the :first of a series ofl'cyln'drical,objects thereonand having an. additionalzarmrnormally below thevtrackway, said latter-farm including a topv edge adapted when the stoplos is swung about its pivot with depreseinnr of the first mentionedarmtoadvanoe thefrst object along the trackway and including also a curvedside edgeforarresting. monument of the next succeeding object while the.first objectfis beingadvanced. i y f 4. In combination with an inclinedtrack-r way for ycylindrical objects, .a stop pivoted alongside saidtrackway at thef'end thereof, saidy ystop having a projectioniriormallyy ex.- tending above the' trackwaytoiarre; gravity movement ofthe ffirst of a series ofweylindrical objects thereon, and'havingsurfaces' normally below'thetrackway adapted when the stop is swungabout its pivot with depression of said projection topermit gravitydischarge of the first object from the trackway while arresting movementof the next succeeding object.

5. In combination with a support having a trackway for cylindricalobjects, a stop pivoted alongside said trackway having a projectionnormally extending above said trackway to arrest movement of the firstof a series of cylindrical objects thereon, and having surfaces normallybelow the trackway adapted when the stop is swung about its pivot withdepression of said projection to be elevated to arrest movement of thenext succeeding object, a toggle joint having one link connected to thetrackway support and another link connected to said stop, and meansconnected to the center of said toggle joint for actuating the same toswing the stop to its alternate positions.

6. In combination with a stationary trackway comprising rails forcarrying pipe flasks or like objects, a stop pivoted alongside saidrails at the end thereof, and a transfer car movable transversely ofsaid trackway having rails thereon adapted for registry with saidstationary rails, said stop having an yarm normally projecting above thetrackway 3U to arrest movement of the first of a'series of objectsthereon, and having an additional arm normally below the trackWa-yadapted when the stop is swung about its pivot with depression of thefirst mentioned arm to advance the first object onto the transfer carwhile arresting movement of the next succeeding object.

In testimony whereof, I have hereunto signed my name at Florence, NewJersey,

this 17 day of July, 1931.

LOUIS A. CAMEROTA.

